Easily install a pressure-activated brake light switch anywhere in your brake system! This special banjo bolt has a built-in 2-wire switch to actuate your brake light relay (not included). The shank of this bolt measures 19mm (0.74") long. Copper Crush Washers (Part No. 3241-3/8) sold separately.
Note: The amperage rating of this compact switch is quite low. It should never be used to switch on brake lights directly. Only use it to trigger a brake light relay (sold separately).